Home / 33,149.31-45,731.01-19,712.91

Finding the Fourth Proportional to 33,149.31, 45,731.01 and 19,712.91

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Solution

The fourth proportional to 33,149.31, 45,731.01 and 19,712.91 is: 27,194.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,149.31 : 45,731.01 = 19,712.91 : x
  2. Step 2: Convert to fraction form
    33,149.31/45,731.01 = 19,712.91/x
  3. Step 3: Cross multiply
    33,149.31x = 45,731.01 × 19,712.91
  4. Step 4: Simplify right side
    33,149.31x = 901,491,284.34
  5. Step 5: Solve for x
    x = 901,491,284.34/33,149.31
  6. Step 6: Final answer
    x = 27,194.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.